Frozen powder is also called agar and agar. It is used medicinally as a laxative to treat constipation, and can also be used as medicinal paper and bacterial culture media. In industry, it can also be used as a lubricant for coatings, pastes, printing offset plates, model making and tungsten filaments for electric lamps. It is also widely used in the food industry.

Operation Points

① Rinse Prototheca (gelidium) once, spread it on the beach, and splash it with fresh water 2-3 times a day for about 1 week The surface layer is yellowish white. Turn the algae over and lay it out, splash water 2-3 times a day until all the red chlorophyll is removed.

②Place the algae on an electric roller to crush all the gravel, shells, limestone, etc. on the algae body. Pour it into the pool and wash it for several times. Take it out and lay it on the cement floor. After drying, it becomes pure raw material. .

③ The production of finished products generally takes advantage of natural winter conditions. The time for manufacturing frozen powder is from mid-December to early February of the following year, and the temperature is most suitable at -5--5℃. Use an open direct fire heating pot or a closed steam pressure pot. The ratio of the weight of raw materials to water is 1:33. First pour water into the pot and heat it until it boils, then put the materials into the pot and wait until it boils again. Stir sulfuric acid and sodium thiosulfate evenly, add 180-240 ml of sulfuric acid per 100 kilograms of prototheca processing industry. When the raw materials are melted and degummed to form a porridge, stop heating, cover the pot, and continue for another 40 minutes to allow the remaining residue to settle after melting. , start filtering after 2 hours.

④Use a plate and frame filter press or a filter bag to squeeze and filter while it is hot. Generally, the frozen powder should be filtered above 70°C. The filter bag should be rinsed with hot water once for each filtration, and the filter residue should be processed for the second time. During secondary cooking, the ratio of slag to water is 1:10 and boiling takes about 30 minutes. There is no need to add sulfuric acid and sodium thiosulfate.

⑤Pour the filtered frozen powder soup into small wooden troughs and remove the foam. After a few hours of cooling, it will solidify into jelly.

⑥The frozen powder soup can be cut after it has completely condensed into an elastic colloid. Cut it into rectangular strips with a flour cutting knife, transport it to the powder drying site, put it into the powder leakage device, push it out to become thin strips and dry it in the sun. It can also be cut into thin slices and short pieces.

⑦Use the freezing at night in winter to freeze the water in the colloid into frozen blocks, and melt the water at sunrise to drain out impurities such as salt and pigment in the colloid. Usually it is dried while melting, and it becomes freeze-dried powder after 2 weeks.

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Frozen powder mixed with shredded chicken

Ingredients

10 grams of frozen powder and 150 grams of cooked chicken. Seasoning: 25 grams of sesame paste, 5 grams of salt, 2.5 grams of sugar, 5 grams of MSG, 5 grams of sesame oil, 500 grams of cold water.

Production process

⒈Cut the frozen powder into 5 cm long sections, put it into a bowl, add 450 grams of cold boiled water, soak for about 3 minutes, take it out, and drain the water Put it into a basin; tear the cooked chicken into shreds and place it on top of the frozen noodles.

⒉ Dilute the sesame paste with cold boiled water (50 grams), add salt, sugar, and MSG, mix, drizzle with sesame oil, and pour it on top of the shredded chicken.